EP3029706B1 - Unterbrechungsvorrichtung und modularer fehlerstromschutzschalter, der mindestens eine solche unterbrechungsvorrichtung umfasst - Google Patents

Unterbrechungsvorrichtung und modularer fehlerstromschutzschalter, der mindestens eine solche unterbrechungsvorrichtung umfasst Download PDF

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Publication number
EP3029706B1
EP3029706B1 EP15306905.9A EP15306905A EP3029706B1 EP 3029706 B1 EP3029706 B1 EP 3029706B1 EP 15306905 A EP15306905 A EP 15306905A EP 3029706 B1 EP3029706 B1 EP 3029706B1
Authority
EP
European Patent Office
Prior art keywords
yoke
switching device
arc
arcing horn
horn
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP15306905.9A
Other languages
English (en)
French (fr)
Other versions
EP3029706A1 (de
Inventor
Hassan Essadik
Julien WICKER
Antoine SCHWAAB
Thierry Lienhardt
Vincent KENNEL
Patrice JOYEX
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hager Electro SAS
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Hager Electro SAS
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Publication date
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Publication of EP3029706A1 publication Critical patent/EP3029706A1/de
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/46—Means for extinguishing or preventing arc between current-carrying parts using arcing horns
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
    • H01H71/526—Manual reset mechanisms which may be also used for manual release actuated by lever the lever forming a toggle linkage with a second lever, the free end of which is directly and releasably engageable with a contact structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/346—Details concerning the arc formation chamber
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H2009/347—Stationary parts for restricting or subdividing the arc, e.g. barrier plate using lids for closing the arc chamber after assembly

Definitions

  • the subject of the application is a breaking device and a modular differential circuit breaker comprising at least one such breaking device.
  • Such switching devices generally have a mechanism for opening and closing at least one electrical contact between an upstream electrical line and a downstream electrical line.
  • the opening and closing mechanism comprises an interrupting chamber comprising a yoke, an arc horn and a sub-assembly called a deion.
  • breaking performance of such breaking devices and of modular differential circuit breaker comprising at least one such breaking device are the result of a compromise between various constituent elements of the breaking device.
  • a deion comprising platelets which split the arc. Said plates are kept parallel and without contact with each other by a known non-electrically conductive mechanical device such as sheets of cardboard or plastic plates. The performance of such breaking devices is dependent on the number of deion platelets.
  • the number of platelets is generally a number between 7 and 15 platelets, more particularly 7 or 11 or 12 or 13 platelets.
  • the electric arc is created when the contact opens under load and is guided towards the deion sub-assembly by two elements: The arc horn and an arc sheet.
  • the current trend is to develop ever more efficient switching devices at equivalent or reduced volume. This trend involves increasing the performance of the cut-off device either at constant volume or by reducing the volume of the product or at least to maintain acceptable performance while reducing the volume of the product.
  • Another important parameter in the breaking performance of the breaking device is whether or not there is an arc jump between the arc horn and the yoke.
  • the deion sub-assembly can extend to the cylinder head, which makes it possible to increase the number of deion plates, on the other hand the fact that an "arc jump" is present on the path of the cylinder head. electric arc, goes against the increase in performance generated by the fact that the number of deion wafers is increased.
  • the arc jump is in fact a discontinuity of the conductor which allows the arc to go to the deion sub-assembly.
  • the document DE10230094 a for object an arc extinguishing device for a switching device, to interrupt or extinguish an arc occurring when a pair of contacts carrying electric current is open. It discloses for this purpose a first guide rail comprising one of the contacts which forms a fixed contact, the other contact, which is movable, being disposed on a movable arm connected to a bimetal 20 and a second guide rail located at a distance from the first guide rail below the latter and an arc chamber.
  • the second guide rail comprises a V-shaped part and a free end 11. It also comprises a branch conductor comprising a cutout in which the free end of the second guide rail is housed.
  • the object of the request is to provide a breaking device and a modular differential circuit breaker comprising at least one such breaking device having sufficient breaking performance. important while keeping a sufficiently compact interrupting chamber.
  • the application proposes a switching device having a mechanism for opening and closing at least one electrical contact between an upstream electrical line and a downstream electrical line.
  • the opening and closing mechanism comprises an interrupting chamber comprising a yoke, an arc horn and a sub-assembly called a deion, the arc horn comprising a curved part.
  • the cylinder head has a longitudinal opening.
  • the arc horn ends with a flat portion accommodating in the longitudinal opening so as to be parallel and aligned therewith.
  • the device is characterized in that the yoke comprises a flat portion extended at one of its ends by a first curved portion comprising a contact zone constituting a fixed contact of the breaking device and in that the arc horn is integrated directly into the cylinder head in one piece without arc jump.
  • the arc horn is housed in the same plane as that of the breech.
  • the longitudinal opening allows the arc horn to fit in the same plane as that of the breech.
  • the longitudinal opening in the cylinder head opens out, which makes it possible to house the arc horn entirely in its thickness in the opening of the cylinder head, since this type of component generally has a constant thickness.
  • the opening may also consist of a non-emerging arc horn housing cavity produced by stamping in the cylinder head for example.
  • the first curved portion is itself extended by a second portion constituting an arc horn.
  • the arc horn may consist of two portions, a curved portion extended by a flat terminal portion.
  • the breech and the arc horn are formed in one piece.
  • the yoke and the arc horn are formed by a piece of variable thickness.
  • the yoke and the arc horn are formed by a piece of constant thickness.
  • the breech and the arc horn are formed by a curved part.
  • the yoke and the arc horn are formed of an electrically conductive material.
  • the yoke and the arc horn are formed by a metal part.
  • the figures 1 to 3 are schematic representations of a breaking device 450 known from the prior art with arc jump comprising a mechanism for opening and closing at least one electrical contact between an upstream electrical line and a downstream electrical line.
  • the opening and closing mechanism comprises an interrupting chamber 470 comprising a yoke 462, an arc horn 461 and a sub-assembly called deion 490.
  • the arc horn 461 is a component welded onto the yoke 462.
  • the deion sub-assembly 490 extends to the yoke 462 which makes it possible to increase the number of deion plates 491.
  • the fact that an "arc jump" is present on the course of the electric arc goes against the increase in performance generated by the fact that the number of 491 deion platelets is increased.
  • the arc jump is also schematized in the figures 1 and 3 .
  • the arc jump takes place from a first position 451 of the arc to a second position 452 of the arc above a discontinuity 463 of the conductor which allows the arc to go to the subset deion 490.
  • FIGS. 4 and 5 are schematic representations of a breaking device 450 ′ known from the prior art without an arc jump comprising a mechanism for opening and closing at least one electrical contact between an upstream electrical line and a downstream electrical line.
  • the opening and closing mechanism comprises an interrupting chamber 470 'comprising a yoke 462', an arc horn 461 'and a sub-assembly called deion 490'.
  • the extension of the arc horn 461 ' extends under the breech 462'. This causes a loss of volume in the interrupting chamber and therefore a lower arc voltage and lower heat dissipation.
  • the figure 6 is a schematic representation of a cylinder head 410 of a switching device 400 proposed by the application.
  • the figure 7 is a schematic representation of the breaking device 400 comprising the cylinder head 402.
  • the cut-off device 400 has a mechanism for opening and closing at least one electrical contact between an upstream electrical line and a downstream electrical line.
  • the opening and closing mechanism comprises an interrupting chamber 420 comprising a yoke 402, an arc horn 401 and a sub-assembly called deion 440.
  • the yoke 402 has a longitudinal opening 411.
  • the arc horn 401 is housed in the same plane as that of the yoke 402.
  • the longitudinal opening 411 allows the arc horn 401 to be housed. in the same plane as that of the cylinder head 402.
  • the 401 arc horn is integrated directly into the 402 breech in one piece without arc jump.
  • the arc horn 401 is arranged on the same plane as the yoke 402.
  • the yoke 402 comprises a flat portion 404 extended at one of its ends by a first curved portion 405 comprising a contact area 406 constituting a fixed contact of the breaking device.
  • the first curved portion 405 and the contact zone 406 are itself extended by a second curved portion 407 constituting the arc horn 401.
  • the arc horn 401 can be made up of two portions, that is to say of the second curved portion 407 and of a flat terminal portion 408.
  • the second curved portion 407 is extended by the terminal flat portion.
  • the terminal flat portion 408 is housed in the longitudinal opening 401.
  • the arc horn 401 ends in a flat portion and is preferably curved so that the flat portion fits in the opening 411 of the yoke 402 so as to be parallel and aligned with the latter. .
  • the opening 401 opens out.
  • the opening 401 can be produced by stamping, in this case it is non-through and the part covering the opening 401 extends beyond the thickness of the cylinder head 402 in the direction opposite to that of the chamber. cut off a distance d.
  • this distance is equal to the thickness of the cylinder head 402.
  • this distance is less than the thickness of the cylinder head 402.

Landscapes

  • Breakers (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Emergency Protection Circuit Devices (AREA)

Claims (9)

  1. Unterbrechungsvorrichtung, die einen Öffnungs- und Schließmechanismus mindestens eines elektrischen Kontakts zwischen einer stromaufwärtigen elektrischen Leitung und einer stromabwärtigen elektrischen Leitung aufweist, wobei der Öffnungs- und Schließmechanismus eine Löschkammer (420) aufweist, die ein Joch (402), ein Lichtbogenhorn (401) und eine Deion (440) genannte Teileinheit enthält, wobei das Lichtbogenhorn (401) ein gekrümmtes Bauteil (407) enthält, das Joch (402) eine Längsöffnung (411) aufweist und das Lichtbogenhorn (401) außerdem in einem ebenen Abschnitt (408) endet, der in der Längsöffnung (411) so untergebracht ist, dass er parallel zu dieser und mit ihr ausgerichtet ist, dadurch gekennzeichnet, dass das Joch (402) einen ebenen Abschnitt (404) aufweist, der an einem seiner Enden von einem ersten gekrümmten Abschnitt (405) verlängert wird, der eine Kontaktzone (406) aufweist, die einen ortsfesten Kontakt der Unterbrechungsvorrichtung bildet, und dass das Lichtbogenhorn (401) in einem Stück ohne Lichtbogensprung direkt in das Joch (402) integriert ist.
  2. Unterbrechungsvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Längsöffnung (411) durchgehend ist, wobei das Lichtbogenhorn (401) vollständig in seiner Dicke in der Längsöffnung (411) untergebracht ist.
  3. Unterbrechungsvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Längsöffnung (411) aus einem nicht durchgehenden Aufnahmehohlraum des Lichtbogenhorns (401) besteht, wobei der Hohlraum vorzugsweise durch einen Tiefziehvorgang im Joch (402) hergestellt wird.
  4. Unterbrechungsvorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass das Lichtbogenhorn (401) teilweise in die Dicke des Jochs (402) integriert ist.
  5. Unterbrechungsvorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass das Lichtbogenhorn (401) vollständig in die Dicke des Jochs (402) integriert ist, wobei eine durch das Tiefziehen im Joch (402) erzeugte Ausstülpung einen Abstand zu jedem Bestandteil der magnetischen Teileinheit hat.
  6. Unterbrechungsvorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass das Joch (402) und das Lichtbogenhorn (401) von einem Bauteil variabler Dicke gebildet werden.
  7. Unterbrechungsvorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass das Joch (402) und das Lichtbogenhorn (401) von einem Bauteil konstanter Dicke gebildet werden.
  8. Unterbrechungsvorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass das Joch (402) und das Lichtbogenhorn (401) von einem gebogenen Bauteil gebildet werden.
  9. Modularer Fehlerstromschutzschalter, der mindestens eine Unterbrechungsvorrichtung (400) nach einem der vorhergehenden Ansprüche enthält.
EP15306905.9A 2014-12-01 2015-12-01 Unterbrechungsvorrichtung und modularer fehlerstromschutzschalter, der mindestens eine solche unterbrechungsvorrichtung umfasst Active EP3029706B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1461738A FR3029350B1 (fr) 2014-12-01 2014-12-01 Dispositif de protection differentielle

Publications (2)

Publication Number Publication Date
EP3029706A1 EP3029706A1 (de) 2016-06-08
EP3029706B1 true EP3029706B1 (de) 2020-11-04

Family

ID=52589548

Family Applications (5)

Application Number Title Priority Date Filing Date
EP15306905.9A Active EP3029706B1 (de) 2014-12-01 2015-12-01 Unterbrechungsvorrichtung und modularer fehlerstromschutzschalter, der mindestens eine solche unterbrechungsvorrichtung umfasst
EP15306902.6A Active EP3029703B1 (de) 2014-12-01 2015-12-01 Schutzschalter, bevorzugt fehlerstromschutzschalter
EP15820215.0A Active EP3227901B1 (de) 2014-12-01 2015-12-01 Differenzialschutzvorrichtung
EP15306904.2A Active EP3029705B1 (de) 2014-12-01 2015-12-01 Herstellungsverfahren eines elektrischen geräts, das mindestens zwei elektrische funktionen sicherstellt
EP15306903.4A Active EP3029704B1 (de) 2014-12-01 2015-12-01 Fehlerstromschutzschalter

Family Applications After (4)

Application Number Title Priority Date Filing Date
EP15306902.6A Active EP3029703B1 (de) 2014-12-01 2015-12-01 Schutzschalter, bevorzugt fehlerstromschutzschalter
EP15820215.0A Active EP3227901B1 (de) 2014-12-01 2015-12-01 Differenzialschutzvorrichtung
EP15306904.2A Active EP3029705B1 (de) 2014-12-01 2015-12-01 Herstellungsverfahren eines elektrischen geräts, das mindestens zwei elektrische funktionen sicherstellt
EP15306903.4A Active EP3029704B1 (de) 2014-12-01 2015-12-01 Fehlerstromschutzschalter

Country Status (4)

Country Link
EP (5) EP3029706B1 (de)
AU (1) AU2015356923B2 (de)
FR (1) FR3029350B1 (de)
WO (1) WO2016087768A1 (de)

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH604363A5 (en) * 1976-09-10 1978-09-15 Landis & Gyr Ag Electrical cut=out relay
FR2378344A1 (fr) * 1977-01-25 1978-08-18 Telemecanique Electrique Piece de soufflage
AT384907B (de) * 1985-12-02 1988-01-25 Felten & Guilleaume Ag Oester Fehlerstrom- und leitungsschutzschalter
FR2616583B1 (fr) 1987-06-09 1995-01-06 Merlin Gerin Mecanisme de commande d'un disjoncteur electrique miniature
EP0338930A1 (de) * 1988-04-22 1989-10-25 Hager Electro S.A. Lastschalter oder Differential-Lastschalter
FR2661776B1 (fr) 1990-05-04 1996-05-10 Merlin Gerin Declencheur instantane d'un disjoncteur.
FR2663153B1 (fr) * 1990-06-07 1992-09-11 Legrand Sa Dispositif de declenchement differentiel.
FR2686453B1 (fr) * 1992-01-17 1994-04-08 Legrand Interrupteur differentiel.
FR2701335B1 (fr) * 1993-02-09 1995-04-14 Merlin Gerin Bloc de protection différentielle avec sous ensemble fonctionnel testable.
US5920451A (en) * 1997-09-05 1999-07-06 Carlingswitch, Inc. Earth leakage circuit breaker assembly
FR2777110B1 (fr) 1998-04-03 2000-06-23 Legrand Sa Disjoncteur differentiel multipolaire
FR2811805B1 (fr) * 2000-07-13 2002-08-30 Schneider Electric Ind Sa Appareil de protection electrique differentiel
FR2828329B1 (fr) * 2001-07-31 2003-12-12 Legrand Sa Dispositif pour l'extinction d'un arc electrique
DE10230094B4 (de) * 2002-07-04 2004-06-24 Siemens Ag Lichtbogen-Löschvorrichtung
FR2865582B1 (fr) * 2004-01-22 2006-03-10 Schneider Electric Ind Sas Dispositif de protection differentielle avec moyens de reglage simplifies des parametres de protection
AT509838A2 (de) * 2010-03-19 2011-11-15 Moeller Gebaeudeautomation Gmbh Fehlerstromschutzschalter
WO2012109684A1 (de) * 2011-02-16 2012-08-23 Eaton Industries (Austria) Gmbh Fehlerstromschutzschalter
DE102012111615A1 (de) * 2012-11-29 2014-06-05 Eaton Industries (Austria) Gmbh Fehlerstromschutzschalter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP3029704A1 (de) 2016-06-08
EP3029705A1 (de) 2016-06-08
EP3029704B1 (de) 2021-03-31
FR3029350A1 (fr) 2016-06-03
FR3029350B1 (fr) 2016-12-23
EP3029703A1 (de) 2016-06-08
EP3227901B1 (de) 2019-07-10
EP3029705B1 (de) 2020-11-04
EP3029703B1 (de) 2018-01-31
WO2016087768A1 (fr) 2016-06-09
EP3227901A1 (de) 2017-10-11
AU2015356923A1 (en) 2017-07-20
AU2015356923B2 (en) 2020-03-12
EP3029706A1 (de) 2016-06-08

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